Many say PLanet X doesn't exist....so did they just make up a planet to make us more interested about Space?
or is there really a 10th planet that we dont know about.....and is that where some of the Aliens come from?

You're right this is rediculous. Firstly our solar system does not have a second sun because we would see it if it does. Secondly yes there is a
tenth planet because it has been discovered last year. Go to Nasa's website if you don't believe me and update yourself.

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